<template>
  <div>
    <h1 v-text="msg" ref="title"></h1>
    <button ref="btn" @click="showDOM">点我输出上方的DOM元素</button>
    <School ref="sch"/>
  </div>
</template>
<script>
//引入Schoo1组件
import MySchool from "./components/School";
export default {
  name: "App",
  components: { MySchool },
  data() {
    return {
      msg: "欢迎学习Vue!",
    };
  },
  methods: {
    showDOM() {
      // console.log(this.msg);
      console.log(this.$refs.title); //真实DOM元素
      console.log(this.$refs.btn);
      console.log(this.$refs.sch);//组件的实例对象
    },
  },
};
</script>
